/*=====================================================================*
 *                   Copyright (C) 2011 Paul Mineiro                   *
 * All rights reserved.                                                *
 *                                                                     *
 * Redistribution and use in source and binary forms, with             *
 * or without modification, are permitted provided that the            *
 * following conditions are met:                                       *
 *                                                                     *
 *     * Redistributions of source code must retain the                *
 *     above copyright notice, this list of conditions and             *
 *     the following disclaimer.                                       *
 *                                                                     *
 *     * Redistributions in binary form must reproduce the             *
 *     above copyright notice, this list of conditions and             *
 *     the following disclaimer in the documentation and/or            *
 *     other materials provided with the distribution.                 *
 *                                                                     *
 *     * Neither the name of Paul Mineiro nor the names                *
 *     of other contributors may be used to endorse or promote         *
 *     products derived from this software without specific            *
 *     prior written permission.                                       *
 *                                                                     *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND              *
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,         *
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES               *
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE             *
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER               *
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,                 *
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES            *
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE           *
 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR                *
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF          *
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 * POSSIBILITY OF SUCH DAMAGE.                                         *
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 * Contact: Paul Mineiro <paul@mineiro.com>                            *
 *=====================================================================*/

#ifndef __MODEL_H__
#define __MODEL_H__

#include <stdbool.h>
#include <stdint.h>
#include "distribution.h"

typedef struct _Model Model;
struct _Model 
{
  unsigned int                                  n_items;
  unsigned int                                  n_labels;
  unsigned int                                  n_workers;
  float*                                        alpha;
  float*                                        gamma;
  const float*                                  logpriorz;
  const ParameterizedNormalDistribution*        prioralpha;
  const Distribution*                           priorlogbeta;
  const Distribution*                           priorgamma;
  bool                                          symmetric;

  void*                                         impl;
};

Model*
model_open (const char* pathname,
            bool        read_only);

Model*
model_creat (const char*        pathname,
             unsigned int       n_items,
             unsigned int       n_labels,
             unsigned int       n_workers,
             const float*       logpriorz,
             bool               symmetric);

void
model_close (Model* model);

#endif /* __MODEL_H__ */
